using natural gas this power plant can produce enough energy for about 600,000 homes. generating electricity that's cleaner and reliable, with fewer emissions-- it matters. ♪ gives you a long-lasting fresh breath feeling. so you have the courage to jump in... go in for the hug... or make sparks fly. for a fresh breath feeling that lasts up to 5x longer, get scope outlast. >>> this is one of the most important moments in the life of our country. i stand before you with great pride and joy, pride of the people of this country. you are shown such a calm and patient determination to reclaim this country as your own. enjoy that you can loudly proclaim from the rooftops free at last. [ applause ] >> that was nelson mandela giving his presidential victory speech on may 2nd, 1994. joining me now, chris bishop who knew nelson mandela personally and made two documentaries about mandela. charles, professor of law at harvard university. chris bishop, there's a line in "the new york times" about nelson mandela from a quote from one of his prison cell block mates who says the firs